Bleeding gums, bad breath could signal colon cancer risk

Colorectal cancer is one of the world’s most common causes of cancer deaths particularly in men aged over 50. This type of cancer occurs in the colon and rectum the two vital components of the digestive tract.

Thinking of canceling your dentist appointment because it’s only a check-up? Think again because what if you could find out more than just whether you have a cavity inside your mouth and actually detect a serious health threat somewhere in your body? 

Signs of cancer in the mouth

Mouth symptoms could point to a higher risk of colorectal cancer. Colorectal cancer is cancer of the colon and rectum the two vital components of the digestive tract. Colorectal cancer may not seem connected to the mouth but experts believe the digestive system is all connected.

“If all your dentist does is check for holes in your teeth your gastroenterologist wants to know that,” Dr. Burhenne said. He mentioned that a 2024 meta-analysis that included 16.6 million participants found gum disease is associated with a 21 per cent higher risk of colorectal cancer and this was consistent across many studies.

How is oral health linked to cancer?

Researchers believe that the link could be due to a harmful mouth bacteria called Fusobacterium Nucleatum which is frequently found in patients with gum disease and has been found inside colorectal tumours in almost half the patients examined. It’s believed to migrate from the mouth to the colon via the digestive system, aiding in the formation of tumours.

Oral symptoms to watch out for

Six common mouth symptoms which may be early indicators:

• Bleeding gums: This can be a sign of chronic inflammation that may be due to bacterial infection rather than just brushing.
• Persistent bad breath: And while bad breath can be a sign of poor mouth hygiene it can also indicate bacterial overgrowth that could affect the gut.
• Inflamed gums: Tender gums that don’t recede with brushing may be a sign of inflammatory conditions that increase disease risk.
• Receding gums: Gums that retreat from teeth expose the roots and reflect chronic microbial imbalances.
• Heavy tartar buildup: Tartar is plaque that has hardened and is filled with bacteria it can protect unhealthy microbes and encourage their growth.
• History of gum disease: A history of gum disease may indicate that patients have been exposed to harmful bacteria for a long time.

Why screening matters

Healthcare professionals stress colorectal cancer is one of the world’s most common causes of cancer deaths particularly in men aged 50 and above. This is the reason early detection through screening particularly colonoscopies is the best way to tackle the disease. Dr. Burhenne said neglecting early symptoms whether in the mouth or elsewhere might lead to a late diagnosis. He concluded, “The mouth is the start of the digestive system. What starts here doesn’t stay here.”

Dr. Ross provides the level of periodontal expertise that can make a real difference in your long-term health. Call us at (813) 684-8085 or request an appointment online.